Yazaki Corporation

Kinya Horibe

Hitoshi Ushijima

Tomio Hirano

Hitoshi Ohashi

Minoru Ikeda

Masazumi Kawai

Koichiro Tsuji

Yasukazu Hoshino

Kiyofumi Uchida

Takayoshi Endo

Tatsuya Kato

Takashi Ishii

Hirohiko Fujimaki

Hideaki Murata

The apparatus forms an electric circuit on a construction member of a machine based on a set of three-dimensional data. The data defines a position and a profile of the construction member, a position of the electric circuit, and a shape of the electric circuit. The electric circuit is used for electrical connection between electric instruments mounted on the machine. The data is associated with a reference coordinate system provided in the machine, and the data includes coordinates of points for determining arrangement of the electric circuit, a distance between any two of the points adjacent to each other, and a cross-sectional area of the electric circuit associated extended between the two points. The apparatus has a storage means for storing the data, a jet means for jetting a molten metal, a first transfer means for moving the construction member relative to the jet means, and a control means for jetting the molten metal against the construction member to deposit the molten metal and for controlling the relative movement between the construction member and the jet means based on the data. The jet means can jet the molten metal against the construction member so that the molten metal can be deposited on a surface of the construction member to form the electric circuit on the construction member.

Method for forming electrical circuit by jetting molten metal

A method for producing a circuitry includes steps of providing first coordinate data of at least one of positions, shapes and intervals of patterns of a first circuit, and jetting droplets of molten metal on a substrate so as to form the first circuit based on the coordinate data.

Method for producing circuitry using molten metal droplets

A temperature fuse which is melted with high operating temperature accuracy at a desired predetermined temperature in the range of 140&deg; C. to 160&deg; C. A fuse element is made of an alloy consisting essentially of 52-100 wt. % indium and the balance tin, and with this construction there can be achieved the temperature fuse which is melted with high operating temperature accuracy at a desired predetermined temperature in the range of 140&deg; C. to 160&deg; C.

Temperature fuse and apparatus for detecting abnormality of wire harness for vehicle

A magnetic plastic rotor disk manufacturing apparatus, includes an injection device for injecting a magnetic plastic material containing a synthetic resin matrix and a magnetic powder; a mold for molding the magnetic plastic material injected thereinto from the injection device, and a device for generating a magnetic field and magnetizing the magnetic powder in a direction along a diameter of the magnetic plastic rotor disks. The mold includes a three-plate type mold constructed of two retainer plates and a single runner stripper plate. One of the retainer plates is formed with a plurality of pin gates corresponding to the cavities so as to supply the magnetic plastic material through the pin gates into the cavities.

Magnetic plastic rotor disk manufacturing apparatus

To remove pores and lattice defects in gold film plated on a substrate, the gold plating film is irradiated with a first laser beam to bring at least the surface of the film into almost melted condition, and then cooled in air. Further, it is preferable to anneal the melted gold surface by a second laser beam weaker than the first laser beam before air cooling, thus reducing the thickness of the gold film and therefore the material cost of electric contacts, for instance.

Method of treating gold plating film

In an electric contact having a Cu-based layer, a Ni-based layer formed on the Cu-based layer, and a Pd-based layer formed on the Ni-based layer, the Ni-based layer having a thickness of at least 0.8 .mu.m is so formed as to include a noncrystal nickel alloy layer having a thickness of at least 0.08 .mu.m, in order to reduce the thickness of the Pd-based layer down to about 0.08 .mu.m, that is, the cost of the contact without deteriorating the contact durability, as compared with a 0.6 to 2 .mu.m thick prior-art Pd-based layer.

Electric contact

A fuse comprising a fuse element made by fixing a low-melting-point metal chip to a high-melting-point metal conductor, in which oxidatoin of the portions of the metal chip that are in contact with the metal conductor is prevented by [either partially fusing or soldered the metal chip to the metal conductor, or by] forming a layer of oxidation resistant material over the metal chip and then partially fusing the metal chip to the metal conductor.

Fuse and manufacturing method thereof

A magnetic plastic rotor disk manufacturing apparatus according to the present invention is capable of manufacturing a plurality of magnetic plastic rotor disks having equal desired surface magnetic flux density distribution characteristics in a single molding cycle. The apparatus comprises a metal mold composed of a pair of half molds and having a plurality of cavities for receiving magnetic plastic material therein, etiher one or a plurality of magnetic field creating coils for creating one or a plurality of magnetic fields to magnetize and orient the magnetic particles in the above magnetic plastic material injected into the cavities, and also a plurality of yokes, one of which by any means extends from the central portion thereof along the splitting surface of the metal mold toward the above cavities formed on a circle concentrically formed therein so as to guide the magnetic fluxes of the magnetic fields created by the above coils to flow radially from the central portion of the same toward the periphery thereof. Thus, the magnetic plastic rotor disks formed in the cavities are exposed uniformly and diametrically to the magnetic flux, enabling them having a satisfactorily large surface magnetic flux density.

Growing community of inventors

Shizuoka, Japan

Kinya Horibe